They are best known from the genus Palissya, which is found in Laurasia and Eastern Gondwana dating from the Late Triassic to Early Cretaceous.

[1] The cone of the best known genus Palissya is noted for its unusual construction, which is borne on a large bract (modified leaf), and consists of two parallel rows of ovules that run along the midline of the adaxial surface of the bract which are encased in cup-like structures formed by scales.

The bracts are helically arranged around an axis, forming a compound catkin-like structure.

The seeds are thin-walled were likely only viable for a short period of time, and were likely adapted to wind dispersal.

Palissya has been considered in some aspects to be similar to some Paleozoic Voltziales, as well as Taxaceae and Podocarpaceae.